Human Biology: Concepts and Current Issues
7th Edition
ISBN: 9780321821652
Author: Michael D. Johnson
Publisher: Benjamin Cummings
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Chapter 12, Problem 3TY
Summary Introduction
Introduction:
The strength of stimuli has a significant effect on how organisms react to them. This is in large part due to differences in how stimuli of varying intensities are processed. The frequency with which stimuli are received and the intensity of the signals depend on various factors.
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Which of the following changes to an action potential indicates a larger stimulus?
a. Increased frequency
b. Increased wavelength
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When you look at a physical object, like a photograph, light waves emanating from the object stimulate receptors in your eye. Technically, the light waves that reach your eye are called a ____ stimulus, and the photograph would be considered a ____ stimulus.
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Chapter 12 Solutions
Human Biology: Concepts and Current Issues
Ch. 12 - Prob. 1QCCh. 12 -
2. Should the use of all hand-held devices,...Ch. 12 - Do you approve of the law in five states that a...Ch. 12 -
1. List the five classifications of receptors in...Ch. 12 - Prob. 2CRCh. 12 -
3. Describe what information the somatic...Ch. 12 - Name the five special senses.Ch. 12 - Compare and contrast fast pain, slow pain, and...Ch. 12 - Prob. 6CRCh. 12 - Prob. 7CR
Ch. 12 - Prob. 8CRCh. 12 - Prob. 9CRCh. 12 - Prob. 10CRCh. 12 - What do the receptors in the skin for light touch...Ch. 12 - Prob. 2TYCh. 12 - Prob. 3TYCh. 12 - Receptor adaptation results when: a. sensory...Ch. 12 - Prob. 5TYCh. 12 - Different pitched sounds will result in...Ch. 12 - Prob. 7TYCh. 12 - Prob. 8TYCh. 12 - Prob. 9TYCh. 12 - Prob. 10TYCh. 12 - Prob. 11TYCh. 12 - Prob. 12TYCh. 12 - Prob. 13TYCh. 12 - Prob. 14TYCh. 12 - Which of the following can be corrected with...Ch. 12 - With the eyes closed, would an astronaut in outer...Ch. 12 - Why do you suppose that you are not normally aware...Ch. 12 - Prob. 3AWKCh. 12 - Prob. 4AWKCh. 12 - Prob. 5AWKCh. 12 - Prob. 6AWKCh. 12 - Prob. 7AWK
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Similar questions
- How do we distinguish a strong stimulus from a weak one when the information about both stimuli is relayed by action potentials that are all the same amplitude?arrow_forwardWhich of the following best describes the function of a camera type eye? A) To form high-definition images that are transmitted to the brain. B) To gather and concentrate light through a lens onto retinal tissue which generates an impulse that is transmitted to the brain. C) To protect the optic nerve which generates an impulse that is transmitted to the brain. D) To detect vibrations through the vitreous body which generates an impulse that is transmitted to the brain.arrow_forwardWhen a receptor cell detects a specific kind of stimulus, what happens to the stimulus energy?arrow_forward
- Which of the following limits the potential of an individual neuron to encode the frequency of a stimulus using temporal coding? A the upper limit on the firing rate of a neuron. B the pinna of the outer ear C the oscicles of the middle ear D the flexibility of the oval windowarrow_forwardThe dissociation of rhodopsin in the rods in response to light causes a.the Na+ channels to become blocked. b.the rods to secrete less neurotransmitter. c.the bipolar cells to become either stimulated or inhibited. d.all of these.arrow_forwardAuditory neural signals are sent when HAIR CELLS in our inner ears open ion channels along their plasma membranes to trigger action potentials. What specifically happens to the hair cells that causes ion channels to open?arrow_forward
- Rod and cone coupling is communication between rods and cones via A. Glutamate receptors B. Gap Junctions C. Horizontal Cells D. Two of the abovearrow_forwardA device that monitors the activity of the photoreceptor cells of the eye indicates that there is a constant flow of neurotransmitter being released by the photoreceptor cells. This information implies that the subject is a. reading. b. in a dark room. c. outside in sunlight. d. in a brightly lit auditorium. e. focusing on a distant object.arrow_forwardWhat effect would a WEAKER stimulus have on C? a. Greater amplitude (height) b. Lower amplitude c. Narrower curve d. No change e. Wider curvearrow_forward
- Transduction of a stimulus usually causes depolarization of a sensory receptor. a.)In most receptors, what is the chemical basis for this depolarization (that is, what is the specific mechanism for the change)?b.)How is a photoreceptor different from other receptors in terms of its membrane potential? c.) Explain how photoreceptors in the light can lead to excitation of some bipolar cells and inhibition of othersarrow_forwardTonic receptors a.are fast-adapting. b.do not fire continuously to a sustained stimulus. c.produce action potentials at a greater frequency as the generator potential is increased. d.are described by all of these.arrow_forwardThe brain knows whether an incoming nerve impulse is light, sound, or pain because of thea. nature of the sensory receptor.b. frequency of the sensory signal.c amplitude of the sensory signal.d. wiring to specific CNS locations.arrow_forward
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